EP0200445B1 - Verpackungsmaschine - Google Patents

Verpackungsmaschine Download PDF

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Publication number
EP0200445B1
EP0200445B1 EP19860302965 EP86302965A EP0200445B1 EP 0200445 B1 EP0200445 B1 EP 0200445B1 EP 19860302965 EP19860302965 EP 19860302965 EP 86302965 A EP86302965 A EP 86302965A EP 0200445 B1 EP0200445 B1 EP 0200445B1
Authority
EP
European Patent Office
Prior art keywords
folding
blank
movement
folder
pivotal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19860302965
Other languages
English (en)
French (fr)
Other versions
EP0200445A3 (en
EP0200445A2 (de
Inventor
Rolf Muller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mead Corp
Original Assignee
Mead Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mead Corp filed Critical Mead Corp
Publication of EP0200445A2 publication Critical patent/EP0200445A2/de
Publication of EP0200445A3 publication Critical patent/EP0200445A3/en
Application granted granted Critical
Publication of EP0200445B1 publication Critical patent/EP0200445B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/105—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the axis of the tube being parallel to the conveying direction

Definitions

  • This invention relates to a folding mechanism in a machine for packaging articles in a tubular wraparound carrier formed from a blank having a pair of walls adjoined together along a fold line and having a pair of article retaining flaps disposed astride the fold line, and which includes a conveyor for advancing a blank and its articles along a predetermined path.
  • the mechanism folds such flaps inwardly of the carrier.
  • the invention is concerned with the inward folding of such pairs of flaps cut from an open-ended tubular wrapper to define article receiving apertures. The two flaps of each pair of flaps are engaged and folded inwardly while the adjacent portions of the blank are held against substantial sidewise movement by suitable guide means.
  • the invention relates to a folding mechanism in a machine for packaging articles in a tubular wrap-around carrier formed from a blank having a pair of walls adjoined together along a fold line and having a pair of article retaining and blank reinforcing flaps disposed astride said fold line and which includes means for advancing a blank and its associated articles along a predetermined path, said mechanism for engaging and folding said pair of flaps and to fold such flaps inwardly of the carrier comprising a pivotal folder adapted to execute a folding movement thereby progressively to enter an aperture in the blank to fold the flaps and to retract therefrom during feed movement of the blank and said pivotal folder together through a folding station of the machine, said pivotal folder including a blank engaging portion and means for cooperation with actuating means to pivot the folder thereby to execute said folding movement and said retracting movement.
  • Such a mechanism is known from NL-A-6913059 (see also US-A-35 72003).
  • the mechanism according to the invention is characterised in that said blank engaging portion comprises a pair of divergently pivotal fingers adapted to move apart consequent upon said folding movement of the folder.
  • the blank folding mechanism 10 comprises two pairs of chain and sprocket sets ; an upper set 12 and a lower set 14.
  • the upper chain and sprocket set 12 comprises spaced sprockets 16 and 18 respectively, about which is entrained endless chain 20.
  • the lower chain and sprocket set 14 comprises spaced sprockets 22 and 24 respectively, about which is entrained chain 26.
  • the blank folding mechanism is adapted to be installed adjacent the infeed end of a packaging machine. Two such mechanisms are installed in side-by-side relationship so that a blank and article feed path is provided between the mechanisms.
  • the description hereinafter refers to the right-hand mechanism of the pair as viewed when looking downstream of the blank and article feed path « F " .
  • a drive sprocket assembly 30 is driven from a suitable drive source (not shown) and includes upper sprocket 32 and lower sprocket 34 fixed on the same drive shaft 36 of the assembly.
  • Drive sprocket 32 transmits drive via endless chain 38 to sprocket 16a which is coupled for rotation with sprocket 16 of the upper chain and sprocket set.
  • Drive sprocket 34 transmits drive via endless chain 40 to sprocket 24a which is coupled for rotation with sprocket 24 of the lower chain and sprocket set.
  • sprockets 16 and 18 of the upper chain and sprocket set 12 have their axes displaced longitudinally of the mechanism with respect to the axes of sprockets 22 and 24 of the lower chain and sprocket set 14.
  • the longitudinal spacing between the adjacent upper and lower sprockets at each end of the mechanism is equivalent to the distance between the attachment locations « A», « B of a blank folding device 42 mounted in the space between the upper and lower chain and sprocket sets 12, 14 respectively.
  • a series (in this case, four) of similar devices 42, 42a, 42b and 42c is mounted between the chain and sprocket sets and each device is attached at location « A adjacent one of its ends to upper chain 20 and at location « B intermediate its ends to lower chain 26.
  • each blank folding device is moved along the chain paths.
  • each blank folding device is moved by the chains 20, 26 along a along a working path «W parallel to the blank and article feed path « F and transversely between sprockets 16 and 22 downstream of the working path to transfer for movement along a return path « R » whereafter the device is transferred between sprockets 18 and 24 into a position upstream of the working path to complete one cycle of operation.
  • each blank folding device to the upper and lower chains necessarily causes the transverse movement of the device at the ends of the working and return paths to occur so that the longitudinal axis of the device remains parallel to the working and return paths and such that the outward facing side of the device always faces towards the blank and article feed path.
  • each blank folding device e. g. device 42 comprises a frame 44 by which the device is attached to the endless chains 20 and 26 and which accommodates a linear series of pivotal folders f1-f5.
  • the folders are mounted for pivotal movement independently of each other on a support shaft 46 spanning the length of frame 44 and are axially resiliently loaded by an end spring 48.
  • Each folder « f (see « f1 » in Figure 3) comprises an upstanding lug 50 which is rotatably mounted on shaft 46, a blank engaging portion 52 extending in one direction outwardly of the frame at the upper end of the lug and a cam follower 54 extending in the opposite direction outwardly of the frame at the lower end of the lug.
  • the blank engaging portion 52 of each folder comprises a pair of pivotal fingers fa and fb.
  • FIG. 4 illustrates the upstream end of the folding station « S » in which a carton blank « b » of the wrap-around type is moving along the feed path « F » in synchronism with folder device 42c.
  • the blank is formed with a linear series of article heel retaining apertures « r » which are struck along the fold line 60 which foldably connects a side wall panel 62 with a bottom lap panel 64 of the blank.
  • Such heel retaining apertures are provided to receive e. g. heel portions of bottles to assist retention of the bottles in the completed carton.
  • the heel retaining apertures are each defined in part, by foldable reinforcing tabs t1 and t2 which are frangibly connected together by a small nick before the aperture is opened and which are foldable, to open the aperture, into overlapping relationship with adjacent portions of the side wall and base panel of the blank.
  • Blank « b » is shown guided between guide bar « g and guide strip « st » in feed path « F » entering the folding station « S cauliflower
  • the blank is engaged by folding device 42c as it moves into the folding station « S » of working path « W Recipe
  • Fixed portions « p » of the frame 44 Figure 1) are provided with pegs « pg » ( Figures 4-8) which locate in side wall apertures of the tlank to maintain the blank and folding device fixed as they move through the folding station.
  • Articles e. g. bottles to be wrapped are conveyed along the feed path « F adjacent blank « b by feed lugs 61 disposed at spaced locations along upper endless chain 38.
  • Each pivotal finger f1a, f1b has a carton engaging end « e » and a transverse shoulder « S remote therefrom including pivot point « p » located within the frame of the folding device.
  • the shoulder « S has a back abutment face « sb and a forward abutment face « sf » disposed so as to strike against a back stop surface. « bs and a forward stop surface « fs respectively of the frame.
  • the cam follower of folder « f1 rides down cam profile « C5 thereby causing the pivotal fingers of folder « f1 to retract from aperture « r1 » to their initial positions at which the back abutment faces « sb » of the pivotal fingers strike the back stop surfaces « bs causing the pivotal fingers to close.
  • the base panel 64 of the blank is guided further towards the horizontal. When folding of the base panel is complete, it will underlie the bases of the articles in a'row of articles conveyed adjacent mechanism 10. Simultaneously, the other base panel of the blank would have been brought into a similar position in relation to a parallel row of articles by a juxtaposed mechanism.
  • the folding device 42c When the folding device 42c is transferred through the position of device 42 into the return path « R » it is conveyed through a re-set station « RS as occupied by folding device 42a ( Figure 2).
  • the re-set station includes a further cam block 68 ( Figure 3) in which a horizontal straight line cam track 70 is formed.
  • the downstream mouth of the cam track 70 is flared to lead in the cam followers of the folders « f gut Thereafter, the folders are reset during movement through the straight line cam track 70 into a position that puts the followers into alignment with the upstream end of cam track 58; that is, positioned for movement into cam profile C1 to repeat the foregoing cycle of operation on the next succeeding blank.
  • the fingers when the fingers are pivoted into their extreme outward position, the fingers move apart to engage and fold outwardly the tabs t1 and t2 of a heel retaining aperture « r » and when the fingers are pivoted into their fully retracted position, the fingers are closed together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Basic Packing Technique (AREA)

Claims (8)

1. Faltvorrichtung in einer Maschine zum Einpacken von Gegenständen in einen röhrenförmigen Falthüllenträger, wobei der Träger aus einem Zuschnitt (b) geformt ist, der ein Paar von Wänden, die entlang einer Faltlinie aneinander angrenzen, und ein Paar den Artikel haltende Zuschnittverstärkungslaschen (t1, t2) aufweist, die rittlings der Faltlinie angeordnet sind, wobei die Maschine ein Mittel aufweist, um einen Zuschnitt und dessen zugehörige Artikel entlang einem festgelegten Weg (F) vorzuschieben, wobei der Mechanismus zum Eingreifen in und Falten des Paars von Laschen und zum Falten dieser Laschen ins Trägerinnere einen Schwenkfaltendrücker (f) aufweist, der ausgebildet ist eine Faltbewegung auszuführen und dabei nach und nach in eine Öffnung des Zuschnitts hineinzudrücken, um die Laschen zu falten, und hiervon während der gemeinsamen Vorschubbewegung des Zuschnitts und des Schwenkfaltendrückers durch die Faltstation (S) der Maschine wieder zurückzufahren, wobei der Schwenkfaltendrücker ein in den Zuschnitt eingreifendes Teil (52) und ein Mittel (54) zum Schwenken des Faltendrückers aufweist, das mit Betätigungsmitteln (56, 58) zusammenwirkt und dabei die Faltbewegung und die Zurückfahrbewegung ausführt, dadurch gekennzeichnet, daß der in den Zuschnitt eingreifende Teil ein Paar von auseinandergehenden schwenkbaren Fingern (fa, fb) aufweist, die ausgebildet sind um konsequent zu der Faltbewegung des Faltendrückers auseinander zu gehen.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zusammenwirkenden Mittel ein Gleitstück (54) aufweisen, das in einer Kurvenbahn (58) läuft, wobei die Kurvenbahn so angepaßt ist, daß sie die Faltbewegung und die Zurückfahrbewegung bewirkt.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Finger mit einem Teil (sf) versehen sind, um während der Faltbewegung des Faltendrückers an einem feststehenden Anschlag (fs) einzugreifen, wobei der Anschlag eine Fläche bildet, an der die Finger voneinander wegschwenken.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Finger mit einem Teil (sb) versehen sind, um während der Zurückfahrbewegung des Faltendrückers an einem feststehenden Anschlag (bs) einzugreifen, wobei der Anschlag eine Fläche bildet, an der die Finger zueinander herschwenken.
5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Finger im wesentlichen gleichzeitig schwenken.
6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Vielzahl von gleichartigen, in einer Reihe angeordneten Faltendrückern (f1... f4) in einer Falteinheit (42) vorgesehen sind, die nacheinander betätigt werden, wobei die Vorrichtung mindestens eine solche Falteinheit aufweist.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß jede Falteinheit kreisläufig angeordnet ist, um eine Arbeits- und eine Rückfahrbewegung auszuführen, so daß die Einheit sich entlang einem Arbeitsweg (W) in Vorschubsrichtung des Zuschnitts und der Artikel bewegt, wobei sie die Faltstation durchläuft, und entlang einem Rückkehrweg (R) entgegengesetzt zu der Vorschubsrichtung bewegt und dabei von dem Vorschubsweg entfernt ist, wobei die Arbeits- und Rückkehrwege im wesentlichen parallel zu dem Vorschubsweg sind, und wobei die Einheit so angeordnet ist, daß die Dreh/Schwenkfaltendrücker während der zyklischen Bewegung in Richtung auf den Vorschubsweg ausgerichtet bleiben.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Rückkehrweg eine Rückstellstation (RS) aufweist, in der die Faltendrücker in eine Ausgangsposition zur Ausführung der Faltbewegung an der Faltstation gebracht werden.
EP19860302965 1985-04-24 1986-04-21 Verpackungsmaschine Expired EP0200445B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8510469 1985-04-24
GB858510469A GB8510469D0 (en) 1985-04-24 1985-04-24 Packaging machine

Publications (3)

Publication Number Publication Date
EP0200445A2 EP0200445A2 (de) 1986-11-05
EP0200445A3 EP0200445A3 (en) 1987-11-19
EP0200445B1 true EP0200445B1 (de) 1990-03-28

Family

ID=10578146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860302965 Expired EP0200445B1 (de) 1985-04-24 1986-04-21 Verpackungsmaschine

Country Status (5)

Country Link
EP (1) EP0200445B1 (de)
JP (1) JPH0723130B2 (de)
DE (1) DE3669855D1 (de)
ES (1) ES293789Y (de)
GB (1) GB8510469D0 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8729777D0 (en) * 1987-12-21 1988-02-03 Mead Corp Carton flap folding mechanism
GB9319970D0 (en) * 1993-09-24 1993-11-17 Mead Corp Carton folding mechanism for wraparound cartons
US5664401A (en) * 1993-09-24 1997-09-09 The Mead Corporation Carton folding mechanism for wraparound cartons
EP0708026B1 (de) * 1994-10-20 1999-06-09 Riverwood International Corporation Mechanismus zum Aktivieren von Schachteln
GB9421189D0 (en) * 1994-10-20 1994-12-07 Riverwood Int Ltd Carton activating mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3572003A (en) * 1968-09-13 1971-03-23 Mead Corp Packaging machine and method

Also Published As

Publication number Publication date
EP0200445A3 (en) 1987-11-19
ES293789U (es) 1986-08-01
JPH0723130B2 (ja) 1995-03-15
GB8510469D0 (en) 1985-05-30
DE3669855D1 (de) 1990-05-03
JPS61259907A (ja) 1986-11-18
ES293789Y (es) 1987-04-16
EP0200445A2 (de) 1986-11-05

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